Suppose that the numbers 1 through 10 are each written on a scrap of paper and placed in a bag. You then select one
number from the bag.
-What is the probability of choosing a 4 or a 7 from the bag?
A) $\frac { \mathrm { b } } { 10 }$
B) $\frac { 1 } { 10 }$
C) $\frac { 1 } { 5 }$
D) $\frac { 11 } { 10 }$

Question

Quizplus · Accepted Answer

There are 10 numbers in total, and the favorable outcomes are choosing either a 4 or a 7, which are 2 outcomes. Thus, the probability is $\frac{2}{10} = \frac{1}{5}$.

Suppose That the Numbers 1 Through 10 Are Each Written b10\frac { \mathrm { b } } { 10 }10b​

Suppose That the Numbers 1 Through 10 Are Each Written $\frac { \mathrm { b } } { 10 }$